(4,-3) is on g

For each of the following functions find a point on its graph. Enter exact answers. I cannot find the other three :(

a) g(2x) - 5 ,(2,-8)

b) 3g(x) + 1

c) -(g(1/3(x+4))-8)

d) 1/2g(-5x-15)-8

1 answer

b. 3*g(4) + 1=3*(-3)+1=.... (2,-8)

c. -g(1/3(8+4)) +8.... (8,11) check that
d 1/2g (-5*x -15) -8
now to make the g(4)=g(-5x-15) then
x=-19/5, so (-19/5, -8-3/2)

check those, most of it I did in my head.